2017 Seat Leon 5D Owner's manual

The essentials3Air distribution

: Defrost function. The airflow is directed at the windscreen. Air recirculation is automatically switched off or is not switched on. Increase the fan power
to clear the windscreen of condensation as soon as possible. To dehumidify the air, the cooling system will automatically switch on.
: The air is directed at the chest of driver and passengers by the dash panel air vents.
: Distribution of air towards the chest and the footwell area.
: Air distribution to footwells.
: Air distribution towards the windscreen and the footwell. 
Press the button to switch on or off the cooling system.

Heated rear window: this only works when the engine is running and switches off automatically after a maximum of 10 minutes.

Air recirculation
 
Seat heating buttons

››› in Introduction on page 173
›››
page 173 55

The essentials
How does the heating and the fresh air system work? Fig. 59
In the centre console: heating system and
fre sh air c
ontrols. To switch a specific function on, press the ap-
pr
opri
at

e button. Press the button again to
switch off the function. The LED on each control lights up to indicate
that the r
espective function of a control has
been switched on.
1TemperatureTurn the control to adjust the temperature. The temperature cannot be lower than that of the exterior air temperature, as this system cannot cool or dehumid-
ify the air
2FanSetting 0: blower, heating and fresh air systems switched off
Level 6: maximum fan level
3Air distribution 
: Defrost function. The airflow is directed at the windscreen.
: The air is directed at the chest of driver and passengers by the dash panel air vents.
: Distribution of air towards the chest and the footwell area.
: Air distribution to footwells.
: Air distribution towards the windscreen and the footwell.
56

The essentials
Heated rear window: this only works when the engine is running and switches off automatically after a maximum of 10 minutes

Air recirculation
››› page 176 
››› in Introduction on page 173
›››
page 173 57

The essentials
Fluid Level control Fi l
lin
g capacities
Tank level
Petrol and diesel
engines50 l, of which, approx. 7 l reserveVehicles with all-wheel-drive :
55 l, of which, approx. 8.5 l re- serve
Natural gas en-
ginea)approx. 15 kg
a)
The capacity depends on the efficacy and characteristics of
the natural gas pumps. The capacity indicated is based on a
minimum loading pressure of 200 bar.
Capacity of the windscreen washer fluid container
Versions without
headlight washer
systemapprox. 3 litres
Versions with
headlight washer
systemapprox. 5 litres Fuel
Fig. 60
Fuel tank flap with tank cap attached. The flap that covers the tank cap is unlocked
and loc
k
ed aut

omatically using the central
locking.
Opening the fuel tank cap
● Open the fuel tank flap by pressing on the
left
side.
● Unscrew the cap by turning it to the left. ●
Place it
in the space on the hinge of the
open flap ››› Fig. 60.
Closing the fuel tank cap ● Unscrew the cap by turning it to the right as
far as
it will go.
● Close the lid.

››› in Refuelling on page 265
››› page 264 58

The essentials
Oil Fig. 61
Engine oil dipstick. Fig. 62
In the engine compartment: Engine
oil fi
ller cap. The level is measured using the dipstick loca-
t
ed in the en
gine c

ompartment
›››  page 270.
The oil should leave a mark between zones A and
C . It should never exceed zone
A .
● Zone A : Do not add oil.
● Zone B : You can add oil but keep the level
in th at


zone. ●
Zone C : Add oil up to zone
B .
T op
pin

g up engine oil
● Unscrew cap from oil filler opening.
● Add oil slowly.
● At the same time, check the level to ensure
you do not a
dd too much. ●
When the oil l
evel reaches at least zone B ,
u n
s
crew the engine oil filler cap carefully.
Engine oil additives
No type of additive should be mixed with the
engine oil. The deterioration caused by these
additives is not covered by the warranty. » 59

The essentials
Engine oil specificationsService intervalEngine typeSpecification
Petrol engines with Set Service Intervals (dependent on
time/distance travelled)1.4l CNG / 1.4l 110kW without ACTVW 502 00
1.0l / 1.2l / 1.4l 92kW / 1.4l 110kW with ACT / 1.8l / 2.0lVW 504 00
1.2l / 1.4l 110kW without ACT / 1.6l / 1.8l / 2.0lVW 502 00 a)
Petrol engines with Flexible Service Intervals (LongLife)1.0l / 1.2l / 1.4lVW 508 00 / VW 504 00 b)
1.8l / 2.0lVW 504 00
Diesel engines with Set Service and Flexible Service In-
tervalsc)With particulate filter (DPF)VW 507 00
Diesel engines with Set Service IntervalsWithout particulate filter (DPF)VW 505 01 a)
/ VW 506 01 a)
a)
If the quality of the fuel available in the country does not fulfil the EN 228 (for petrol) and EN 590 (for diesel) standards.
b) Use of engine oil compliant with the VW 504 00 specification instead of VW 508 00 may have a slight negative effect on the vehicle’s exhaust gas values.
c) Only use recommended oils, otherwise you may damage the engine.
››› in Changing engine oil on page 274
››› page 272 Coolant
Fig. 63
Engine compartment: coolant expan-
s ion t
ank

cap. The coolant tank is located in the engine
c
omp
ar

tment ›››
 page 270.
When the engine is cold, replace the coolant
when the level is below .
Coolant specifications
The engine cooling system is supplied from
the factory with a specially treated mixture of
water and at least 40 % of the additive G13
(TL-VW 774 J), purple. This mixture gives the
necessary frost protection down to -25°C
(-13°F) and protects the light alloy parts of
the engine cooling system against corrosion.
It also prevents scaling and considerably rai-
ses the boiling point of the coolant. 60

The essentials
To protect the cooling system, the percentage
of a
d
ditive must always be at least 40 %,
even in warm climates where anti-freeze pro-
tection is not required.
If for weather reasons further protection is
necessary, the proportion of additive may be
increased, but only up to 60 %; otherwise an-
tifreeze protection will diminish and this will
worsen cooling.
When the coolant is topped up, use a mixture
of distilled water and at least 40 % of the
G13 or G12 plus-plus (TL-VW 774 G) additive
(both are purple) to obtain an optimum anti-
corrosion protection ››› in Topping up cool-
ant on p ag
e 275

. The mixture of G13 with
G12 plus (TL-VW 774 F), G12 (red) or G11
(green-blue) engine coolants will significant-
ly reduce anti-corrosion protection and
should therefore be avoided ››› in Topping
up c oo
l

ant on page 275.

››› in Topping up coolant on page 275
››› page 274 Brake fluid
Fig. 64
Engine compartment: brake fluid res-
er v
oir c

ap. The brake fluid reservoir is located in the en-
gine c
omp
ar

tment ›››
 page 270
.
The level should be between the  and 
marks. If it is below , please visit a Techni-
cal Service.

››› in Top up brake fluid on page 276
››› page 275 Windscreen washer
Fig. 65
In the engine compartment: wind-
s c
r

een washer reservoir top. The windscreen washer reservoir is located in
the en
gine c
omp

artment ›››
 page 270.
To top up, mix water with a product recom-
mended by SEAT.
In cold temperatures, add anti-freeze.

››› in Checking and topping up the
windscreen washer reservoir on
page 276
››› page 276 Battery
The battery is located in the engine compart-
ment
›
›

›  page 270. It does not require » 61

The essentials
maintenance. It is checked as part of the In-
s pection
Ser
vice.

››› in Important safety warnings for
handling a vehicle battery on page 278
››› page 277 62